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  <a name="EN-US_TOPIC_0000002042963196"></a><a name="EN-US_TOPIC_0000002042963196"></a>
  <h1 class="topictitle1">Scanning for File Systems</h1>
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   <p id="EN-US_TOPIC_0000002042963196__p8060118">After a file name extension filtering rule is applied to a file system of a vStore, the system automatically performs file system scanning every hour. If a new file system is detected under the vStore, the file name extension filtering rule of the current vStore is synchronized to the new file system. After a file system is newly added, you can manually scan the file system and synchronize the file name extension filtering rules of the current vStore.</p>
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    <h4 class="sectiontitle">Procedure</h4>
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     <li id="EN-US_TOPIC_0000002042963196__li14973142514417"><span>On the navigation pane, choose <strong id="EN-US_TOPIC_0000002042963196__b40619805694154">Data Security</strong> &gt; <strong id="EN-US_TOPIC_0000002042963196__b92714618194154">Ransomware Protection</strong> &gt; <strong id="EN-US_TOPIC_0000002042963196__b192641905394154">Ransomware Detection Settings</strong>.</span></li>
     <li id="EN-US_TOPIC_0000002042963196__li5362122616287"><span>On the <span class="uicontrol" id="EN-US_TOPIC_0000002042963196__uicontrol12890172918"><b>NAS Ransomware Detection</b></span> tab page, click <span class="uicontrol" id="EN-US_TOPIC_0000002042963196__uicontrol18611912135117"><b>Scan</b></span>.</span></li>
     <li id="EN-US_TOPIC_0000002042963196__li19451947195417"><span>In the displayed dialog box, click <span class="uicontrol" id="EN-US_TOPIC_0000002042963196__uicontrol15466115710236"><b>OK</b></span>.</span></li>
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     <strong>Parent topic:</strong> <a href="en-us_topic_0000002042963200.html">Using Ransomware File Interception (Applicable to File Services)</a>
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